APPLICATION ENGINEER III

Insight Global; Pasadena (TX); On-site; USD 83,000 - 90,000; Full time

Job summary

Insight Global in Pasadena, TX is seeking an Application Support Engineer III to support a major Oil & Gas client onsite on a 9/80 schedule. The role focuses on deploying, maintaining, and lifecycle management of PCN/OT application systems across on‑prem and Azure environments, including Windows servers.

Responsibilities include monitoring, patching, asset inventory, cybersecurity compliance, and assisting with upgrades.

Qualifications

• 3+ years of experience supporting and troubleshooting server-based applications in on-premises and/or Azure environments.

Responsibilities

• Deploy and maintain PCN/OT application systems across on-prem and Azure environments.
• Support Windows-based servers and patching cycles.
• Monitor systems, manage asset inventory, and ensure cybersecurity compliance.
• Assist with deployments, upgrades, and lifecycle activities.

Skills

Server troubleshooting

Windows Server administration

OT environment experience

Deployment project experience

Technical documentation

Communication skills

Education

Associate's degree or higher

Tools

Azure IaaS

VMware ESXi/vCenter

PowerShell

Linux (RHEL/CentOS/Ubuntu)

Tenable Nessus/Tanium

Azure DevOps (ADO)

Job description

We are seeking an Application Support Engineer III to support a major Oil & Gas client onsite in Pasadena, TX on a 9/80 schedule. This role focuses on deploying, maintaining, and lifecycle management of PCN/OT application systems across on-prem and Azure environments. Responsibilities include supporting Windows-based servers, ensuring cybersecurity compliance, managing asset inventory, monitoring systems, and executing patching and software lifecycle activities. The ideal candidate brings strong troubleshooting skills, experience across OT and business networks, and the ability to support application deployments and system upgrades. Exposure to OT security frameworks, virtualization (VMware), and automation (PowerShell) is preferred. This is a hands-on role requiring strong communication and documentation skills. Pay for this position ranges from $60 to $65 per hour, based on experience.

Required Skills & Experience

• 3+ years of experience supporting and troubleshooting server-based applications in on-premises and/or Azure environments.
• 3+ years of experience deploying, administering, and troubleshooting Microsoft Windows Server environments.
• Experience supporting applications within an Operational Technology (OT), industrial, utility, manufacturing, or similar environment.
• Experience participating in infrastructure or application deployment projects, including design, testing, implementation, and lifecycle support.
• Strong analytical and problem-solving skills with the ability to identify, troubleshoot, and resolve technical issues.
• Strong written and verbal communication skills, including technical documentation.
• Associate's degree or higher in Information Technology, Computer Science, Engineering Technology, or a related field.

Nice to Have Experience

• Experience with Azure IaaS and SaaS environments.
• Experience supporting and administering VMware ESXi, vCenter, and/or VxRail platforms.
• Experience developing and maintaining PowerShell automation scripts. - Experience deploying, supporting, and troubleshooting Linux servers (RHEL, CentOS, Ubuntu, etc.).
• Experience with cybersecurity and vulnerability management tools such as Tenable Nessus, Tanium, or similar platforms.
• Knowledge of OT network architectures and security frameworks, including the Purdue Model, air-gapped networks, and Zero Trust.
• Experience working within Agile/SAFe environments and utilizing Azure DevOps (ADO).
• Microsoft certifications related to Windows Server, Azure, or cloud/infrastructure administration.

Exact compensation may vary based on several factors, including skills, experience, and education.

Employees in this role will enjoy a comprehensive benefits package starting on day one of

employment, including options for medical, dental, and vision insurance. Eligibility to enroll in

the 401(k)-retirement plan begins after 90 days of employment. Additionally, employees in this

role will have access to paid sick leave and other paid time off benefits as required under the